Development of Compact CO_2 Monitoring System in the Coastal Area.

沿海地区紧凑型CO_2监测系统的开发。

• 批准号: 08558057
• 负责人: KAYANNE Hajime
• 金额: $ 4.99万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08558057/
• 关键词: CO_2; coastal zone; monitoring

We have tested the system in the field : Ishigaki Island, the southwest Ryukyus. The system introduces a gas permeable membrane tube as the equilibrator with NDIR for measurement. It has been succeeded in reducing size, weight and power consumption : 30kg, 50x50x50cm and 300W.The stability of the system is less than *5 ppm within a range of 0 to 1000 ppm, which is enough for coastal zone monitoring where a large change in CO_2 occurrs. We compared the system with a static mixer/bubble type equilibrator. The measured CO_2 values differed with each other as much as 20 ppm. This discrepancy resulted from the changes in pressure inside the equilibrator of static mixer/bubble type by swing of the boat. Our system with a membrane equilibrator is more stable. Through the 3-year research, the development of a compact CO_2, monitoring system has been succeeded for its basic designation and practical test. We continue to brush up this system to be more widely used one.

我们已经在现场测试了该系统：西南Ryukyus Ishigaki岛。该系统将气体渗透性膜管作为NDIR进行测量。它已经成功地减少了尺寸，重量和功耗：30kg，50x50x50cm和300W。系统的稳定性在0到1000 ppm的范围内小于 *5 ppm，这足以容纳沿海地区监测，其中CO_2发生了很大变化。我们将系统与静态混合器/气泡型平衡器进行了比较。测得的CO_2值相互差异多达20 ppm。这种差异是由于船只秋千的静态混合器/气泡类型的平衡器内部压力的变化而产生的。我们具有膜平衡器的系统更稳定。通过为期三年的研究，紧凑的CO_2的开发，监测系统已成功地进行了基本指定和实际测试。我们继续刷新该系统以更广泛地使用。

项目成果

茅根 創: "サンゴ礁と大気二酸化炭素 漆原和子編『カルスト その環境と人びとのかかわり』" 大明堂, (135-144)325 (1996)

Hajime Kayane：“珊瑚礁和大气二氧化碳：漆原和子编辑，喀斯特：环境与人类之间的关系”，Daimeido，(135-144)325 (1996)

Kayanne, H., Kudo, S., Hata, H., Nozaki, K., Kato, K., Negishi, A., Saito, H., Akimoto, F.and Kimoto, H.: "Continuous monitoring system for pCO_2, total alkalinity and total inorganic carbon to evaluate net CO_2 flux of the coastal area." International Wo

Kayanne, H.、Kudo, S.、Hata, H.、Nozaki, K.、Kato, K.、Negishi, A.、Saito, H.、Akimoto, F. 和 Kimoto, H.：“连续监测系统

Saito, H., Kimoto, H., Nozaki, K., Kato, K., Negishi, A.and Kayanne, H.: "Comparative experiment of pCO2 measuring instrument in coral reef environment." Extended Abstract of 2nd Int.Symp.CO2 in the Oceans, Tsukuba, January. P-25 (1999)

Saito, H.、Kimoto, H.、Nozaki, K.、Kato, K.、Negishi, A. 和 Kayanne, H.：“珊瑚礁环境中 pCO2 测量仪器的比较实验”。

茅根 創: "暖水プールと地球環境変動" 地球環境研究センターニュース. 7.5. 1-5 (1997)

Hajime Kayane：“暖池和全球环境变化”全球环境研究中心新闻 7.5 (1997)。

Gattuso,J.-P., Kayanne,H.: "Carbon and carbonate bycling in coral reefs." Proc.8th Int.Coral Reef Symposium. 1. 935-938 (1997)

Gattuso,J.-P.，Kayanne,H.：“珊瑚礁中的碳和碳酸盐循环。”